An easy-to-disassemble casting mold

Abstract

This utility model relates to the field of casting mold technology, specifically a casting mold that is easy to disassemble, comprising: a mold base and a mold, wherein the mold has a mounting screw hole, a mounting screw is rotatably connected to the mold base, the mounting screw is threadedly connected and installed in the mounting screw hole, and an anti-loosening rod mounting sleeve is fixed on the mold base, one end of the anti-loosening rod is movably inserted into the anti-loosening rod mounting sleeve, and the other end of the anti-loosening rod abuts against the nut of the mounting screw; the beneficial effect is that when disassembling the mold, it is only necessary to rotate the turntable in the opposite direction, so that the screw drives the anti-loosening rod to move away from the mounting screw, and then the mounting screw can be unscrewed from the mounting screw hole with a very small force, thereby achieving anti-loosening of the thread between the mounting screw hole and the mounting screw, while also enabling convenient and quick disassembly of the mold.

Description

Technical Field

[0001] The utility model relates to the technical field of casting molds, and specifically relates to a casting mold that is convenient to disassemble. Background Technique

[0002] Casting (also known as founding) is a metal hot working process in which molten metal or alloy is injected into a prefabricated mold, and after cooling and solidification, a product or blank with a specific shape and size is formed. The mold used in the casting process is called a casting mold. The casting mold is installed on a mold base. Screws are provided on the mold base, and screw holes are opened on the mold. The mold and the mold base are installed by the cooperation of the screws and the screw holes. Different molds are installed on the mold base according to the needs of different workpieces.

[0003] In the prior art, in order to prevent the thread connection between the screw and the screw hole from loosening, a metal gasket is usually sleeved on the screw. When installing the mold, the screw is tightened in the screw hole, so that the metal gasket is compressed. The metal gasket has large elasticity and generates a reaction force on the screw under its own elastic force, and a large frictional force is generated between the screw teeth of the screw and the screw hole, thereby playing a loosening prevention function.

[0004] However, in the thread loosening prevention structure in the prior art, when disassembling the mold and the mold base, due to the excessive frictional force between the screw teeth of the screw and the screw hole, a very large force is required to disassemble the mold, and the disassembly is not convenient enough. Content of the Utility Model

[0005] The purpose of the utility model is to provide a casting mold that is convenient to disassemble, so as to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A casting mold that is convenient to disassemble, including: a mold base and a mold. An installation screw hole is opened on the mold, and an installation screw is rotatably connected to the mold base. The installation screw is threadedly connected and installed in the installation screw hole. A loosening prevention rod installation sleeve is fixed on the mold base. One end of a loosening prevention rod is movably inserted into the loosening prevention rod installation sleeve, and the other end of the loosening prevention rod abuts against the nut of the installation screw.

[0007] [[ID=**25**]]Preferably, the nut of the installation screw has a hexagonal prism structure, the loosening prevention rod has a rectangular rod structure, the loosening prevention rod installation sleeve has a "return" shaped cylindrical structure, and the inner ring of the loosening prevention rod installation sleeve cooperates with the loosening prevention rod.

[0008] Preferably, a cover is fixed at one end of the loosening prevention rod installation sleeve away from the installation screw. A screw rod hole is opened on the cover, and a screw rod is rotatably inserted into the screw rod hole. The screw rod has a round rod structure.

[0009] Preferably, internal threads are provided on the inner wall of the screw rod hole, external threads are provided on the rod body of the screw rod, and the screw rod hole and the screw rod are in threaded cooperation.

[0010] Preferably, one end of the lead screw extends into the anti-loosening rod mounting sleeve and is rotatably connected to the anti-loosening rod, while the other end of the lead screw is fixed with a turntable.

[0011] Preferably, the turntable has a circular plate structure, and several sets of pin holes are opened on the turntable. The several sets of pin holes are distributed in a circle about the center line of the turntable. One end of the pin is movably inserted into one set of pin holes, and the other end of the pin is movably inserted into the limiting hole. The pin and the pin hole adopt a transition fit.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The present invention proposes a casting mold that is easy to disassemble. When disassembling the mold, simply rotate the turntable in the opposite direction to make the lead screw drive the anti-loosening rod to move away from the mounting screw. Then, the mounting screw can be unscrewed from the mounting screw hole with very little force. This not only prevents the threads between the mounting screw hole and the mounting screw from loosening, but also makes it convenient and quick to disassemble the mold. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic cross-sectional view of the present invention.

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0017] In the diagram: 1. Mold base; 2. Mold; 3. Mounting screw hole; 4. Mounting screw; 5. Anti-loosening rod mounting sleeve; 6. Anti-loosening rod; 7. Cover; 8. Lead screw hole; 9. Lead screw; 10. Turntable; 11. Pin hole; 12. Limiting hole; 13. Pin. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Example 1: Please refer to Figures 1 to 3, the present utility model provides a technical solution: a casting mold that is easy to disassemble, including: a mold base 1 and a mold 2. An installation screw hole 3 is provided on the mold 2, and an installation screw 4 is rotatably connected to the mold base 1. The installation screw 4 is threadedly connected and installed in the installation screw hole 3. A loosening prevention rod installation sleeve 5 is fixed on the mold base 1. One end of a loosening prevention rod 6 is movably inserted into the loosening prevention rod installation sleeve 5, and the other end of the loosening prevention rod 6 abuts against the nut of the installation screw 4. The nut of the installation screw 4 has a hexagonal prism structure, the loosening prevention rod 6 has a rectangular rod structure, and the loosening prevention rod installation sleeve 5 has a "hui" - shaped column structure. The inner ring of the loosening prevention rod installation sleeve 5 cooperates with the loosening prevention rod 6. A cover 7 is fixed at one end of the loosening prevention rod installation sleeve 5 away from the installation screw 4. A screw rod hole 8 is provided on the cover 7, and a screw rod 9 is rotatably inserted into the screw rod hole 8. The screw rod 9 has a round rod structure, the inner wall of the screw rod hole 8 has internal threads, and the rod body of the screw rod 9 has external threads. The screw rod hole 8 and the screw rod 9 are in threaded cooperation. One end of the screw rod 9 extends into the loosening prevention rod installation sleeve 5 and is rotatably connected to the loosening prevention rod 6, and the other end of the screw rod 9 is fixed with a turntable 10.

[0020] During actual use, after installing the installation screw 4 in the installation screw hole 3 by threaded connection to complete the installation of the mold base 1 and the mold 2, rotate the turntable 10. The turntable 10 drives the screw rod 9 to rotate. Under the threaded connection of the screw rod hole 8 provided on the cover 7 and the screw rod 9, the screw rod 9 pushes one end of the loosening prevention rod 6 towards the direction close to the installation screw 4, making the end of the loosening prevention rod 6 extend out of the loosening prevention rod installation sleeve 5 and abut against the surface of the installation screw 4, thus realizing the limitation of the installation screw 4 and achieving thread loosening prevention without having to screw the installation screw 4 too tightly. When disassembling the mold 2, just rotate the turntable 10 in the reverse direction, making the screw rod 9 drive the loosening prevention rod 6 to move away from the installation screw 4, and then the installation screw 4 can be screwed out of the installation screw hole 3 with a very small force, realizing the convenient and fast disassembly of the mold 2.

[0021] Embodiment 2: On the basis of Embodiment 1, in order to prevent the turntable 10 from rotating by itself without operation, the turntable 10 has a circular plate structure. A number of groups of pin holes 11 are provided on the turntable 10, and the number of groups of pin holes 11 is circumferentially distributed about the center line of the turntable 10. One end of a pin 13 is movably inserted into one of the groups of pin holes 11, and the other end of the pin 13 is movably inserted into a limit hole 12. The pin 13 and the pin hole 11 are in interference fit.

[0022] Align one of the groups of pin holes 11 with the limit hole 12, and insert the pin 13 through the pin hole 11 into the limit hole 12, then the circumferential limitation of the turntable 10 can be realized, preventing the turntable 10 from rotating by itself without operation.

[0023] In actual use, after the mounting screw 4 is installed in the mounting screw hole 3 via threaded connection to install the mold base 1 and the mold 2, the turntable 10 is rotated. The turntable 10 drives the lead screw 9 to rotate. Under the action of the threaded connection between the lead screw hole 8 on the cover 7 and the lead screw 9, the lead screw 9 pushes one end of the anti-loosening rod 6 towards the mounting screw 4, so that the end of the anti-loosening rod 6 extends out from the anti-loosening rod mounting sleeve 5 and abuts against the surface of the mounting screw 4, thereby limiting the mounting screw 4 and achieving thread anti-loosening. The mounting screw 4 should not be tightened too much. When disassembling the mold 2, simply rotate the turntable 10 in the opposite direction so that the lead screw 9 drives the anti-loosening rod 6 away from the mounting screw 4. Then, the mounting screw 4 can be unscrewed from the mounting screw hole 3 with very little force, thus achieving convenient and quick disassembly of the mold 2. Align one set of pin holes 11 with the limiting hole 12, and insert the pin 13 through the pin hole 11 into the limiting hole 12 to circumferentially limit the turntable 10, thereby preventing the turntable 10 from rotating on its own when not in operation.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cast mold that facilitates disassembly, comprising: Die holder (1) and mold (2), characterized in that: an installation screw hole (3) is provided on the mold (2), an installation screw (4) is rotatably connected to the die holder (1), the installation screw (4) is threadedly connected and installed in the installation screw hole (3), a loosening prevention rod installation sleeve (5) is fixed on the die holder (1), one end of a loosening prevention rod (6) is movably inserted into the loosening prevention rod installation sleeve (5), and the other end of the loosening prevention rod (6) abuts against the nut of the installation screw (4).

2. A cast mold according to claim 1, wherein: The nut of the installation screw (4) is of a hexagonal prism structure, the loosening prevention rod (6) is of a rectangular rod structure, the loosening prevention rod installation sleeve (5) is of a "return" shaped cylindrical structure, and the inner ring of the loosening prevention rod installation sleeve (5) cooperates with the loosening prevention rod (6).

3. A cast mold according to claim 1, wherein: A cover (7) is fixed at one end of the loosening prevention rod installation sleeve (5) away from the installation screw (4), a screw rod hole (8) is provided on the cover (7), and a screw rod (9) is rotatably inserted into the screw rod hole (8), and the screw rod (9) is of a round rod structure.

4. A cast mold according to claim 3, wherein: Internal threads are provided on the inner wall of the screw rod hole (8), external threads are provided on the rod body of the screw rod (9), and the screw rod hole (8) and the screw rod (9) are in threaded cooperation.

5. A cast mold according to claim 4, wherein: One end of the screw rod (9) extends into the loosening prevention rod installation sleeve (5) and is rotatably connected to the loosening prevention rod (6), and a turntable (10) is fixed at the other end of the screw rod (9).

6. A cast mold according to claim 5, wherein: The turntable (10) is of a circular plate structure, a number of groups of pin holes (11) are provided on the turntable (10), the number of groups of pin holes (11) are circumferentially distributed about the center line of the turntable (10), one end of a pin (13) is movably inserted into one group of pin holes (11), the other end of the pin (13) is movably inserted into a limit hole (12), and the pin (13) and the pin hole (11) are in interference fit.

Images